Track-switch.



J. B. BULMER.

TRACK swrTcH.

ION FI J. B. BULMER.

TRACK SWITCH.

APPLICATION FILED IAN. I6. I9I4.

gl. Pawn-ted May11,1915.

2 SHEETS-SHEET 2- JOHN BERNARD BULMER, OF TORONTO, ONTARIO, CANADA.

TRACK-SWITCH.

Specification of Letters Patent.

Patented May 11, 1915.s

Application led January 16, 1914. Serial No. 812,413.

To aZZ whom t may concern Be it known that I, JOHN BERNARD BUL- MER, of the city of Toronto, in the county of York and Province of Ontario, Canada, have invented certain new and useful Improvements in Track-Switches; and I hereby dey clare that the following is a full, clear, and exact description of the same.

This invention relates to an automaticallyactuated track switch which can be selectively set by corresponding cooperating means attached to a car or train, as hereinafter set forth and particularly pointed out in the claims.

In the drawings: Figure 1, is a perspective view of a switch and the switch-operating mechanism; and, Fig. 2, is a similar view, showing a modification of the switchoperating mechanism to that shown in Fig. 1.

Like characters of reference refer to like parts throughout the specification and drawings. n

The switch-operating mechanism consists essentially of a switch box set in the road bed in juxtaposition to the switch (Z, and in which is contained the switch operating mechanism hereinafter described. This switch-operating mechanism may be generally described as comprising a lever t connected with the switch Z and normally inoperative lever-moving means actuated by corresponding coperating means attached to the car.

In Fig. 1, the lever a is provided with a hub f encircling the fulcrum a', and extending from the-sides of the hub f are lugs g. Pivoted to the lugs are L-shaped arms h, each of which normally rests on the inner end of a rocker lever z'. rIhe rocker levers i oscillate on their fulcrums z" to elevate the arms h, so that their L-shaped ends ZL will project above the surface of the road bed, and to lower them so that the L-shaped ends 71, will be below the surface of the road bed, as hereinafter described. The outer end of each of the rocker-levers e'. is provided with a presser plate j to be engaged by the rims or flanges of the car wheels y" as the car wheels pass over it, for the purpose of depressing those ends of the rocker levers and raising the inner ends to elevate the arms h and bring their L-shaped ends h above the road bed. Pivoted below the car body are two toggle levers 7c having at their inner ends gripping members Z to engage with the L-shaped ends Zt of the arms 7L. Vertically movable through the car bodyare plungers fm engaging the outerends of the toggleV levers lo, either of which may be held in a lowered position by a pivoted arm /c which can be positioned to hold either selected plunger down. The toggle levers L are fulcrumed at c, 7c, and are jointed at 7c3. Bearing against the car bottom and against the toggle levers interjacent the fulcrums 7s', lo, are springs 0 which normally throw the joint les out of line with the fulcrums 7c', 7c, and by doing so, raise the gripping .members Z into an inoperative position.

When either of the plungers m is depressed, it straightens the parts of its respective toggle lever 7s by bringing the joint 7c3 into line with the fulcrums 7c', 7a, and by doing so, lowers its respective gripping member Z to engage the L-shaped end it of its respective arm it. The engagement of the gripping member Z with the end z/ moves that arm It in the direction the car is traveling, and causes the oscillation of the lever a. For example, the engagement of the gripping member Z at the right side of the car which is shown in Fig. 1 to be lowered carries the arm 71 on the right side of the fulcrum a', forward with it and throws the lever a and switch cZ to the left, and the engagement of the gripping member Z at the left side of the car with the arm ZL, at the left side of the fulcrum a', carries that arm forward with it and moves the lever a to the right to throw the switch to the right. The L- shaped ends z/ of the arms h are so formed that when the gripping members Z move the lever a to its limit of motion, the gripping members will disengage from the L-shaped ends 71, and leave the parts in the position to which they have been moved.

In Fig. 2, I have dispensed with the L- shaped arms h and rocker levers z', and have connected to the lever a adjacent to its fulcrum a', two arms p located on opposite sides of the fulcrum, and I have also provided a rock shaft r having cam-'shaped elements g loosely mounted on it to be engaged by rollers Z on the ends of the toggle levers 7c. The cam-shaped elements g may normally project above the road bed to be engaged by the rollers Z when the levers Za are set by the action of the plungers m. The rollers Z are normally held by the springs out of operative relation with the camshaped elements g, and are brought into operative relation with these elements Q by the lowering of the plungers m. When a roller Z has been set, it engages its respective camshaped element g and by bearing down on it, oscillates said element g and causes it to move its respective arm and osoillate the lever a.

By means of either of the foregoing constructions, I am able to positively set the switch when either of the toggle levers is moved to a position where it will have operative relation with the lever-moving device.

Having thus fully described the nature of my invention, what I claim as new and desire to secure by Letters Patent, is

l. The hereinbefore described device comprising a switch, a switch-moving lever connected therewith, two arms pivotally connected with the lever on opposite sides of its fulcrum, and rocker levers to raise said arms.

2. The hereinbefore described device comprising a switch, a switch-moving lever connected therewith, two arms pivotally connected with the lever on opposite sides of its fulcrum, and rocker levers to raise said arms, in combination with adjustable means carried by the car to selectively engage either of said arms and move the lever to predetermine the position of the switch.

Toronto, Ont., J an. 8th, 1914.

JOHN BERNARD BULMER.

Signed in the presence olf- CHAs. H. R101-ms, F. vF. BOOTHBY.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, I). C. 

